Convert Saba to BES2020 Saba

Convert coordinates from Saba (EPSG:10635) to BES2020 Saba (EPSG:10638) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.

From

Input (lon, lat (decimal degrees))

Output (lon, lat (decimal degrees))

Direct link to this transformation: epsgtransform.com/transform/epsg-10635-to-epsg-10638

Official EPSG transformation from Saba to BES2020 Saba

The EPSG Geodetic Parameter Dataset defines 1 transformation between Saba (EPSG:10635) and BES2020 Saba (EPSG:10638). Its parameters, accuracy and area of use are listed below.

Saba to BES2020 Saba (1)

EPSG:10646±0.05 m

Method:: Coordinate Frame rotation full matrix (geog3D)
Area of use:: BES Islands - Saba onshore
Scope:: Engineering survey, topographic mapping.

Parameter	Value	Unit
X-axis translation(tx)	1138.7432	metre
Y-axis translation(ty)	-2064.4761	metre
Z-axis translation(tz)	110.7016	metre
X-axis rotation(rx)	-214.615206	arc-second
Y-axis rotation(ry)	479.360036	arc-second
Z-axis rotation(rz)	-164.703951	arc-second
Scale difference(ds)	-402.32073	parts per million

For the reverse transformation from BES2020 Saba to Saba, method 1140 [used here] is reversible using the same parameter values with the reverse formulas (see GN7-2). However, the official BESTRANS document applies the same formulas for both the forward and reverse transformations, but uses different parameter values for the reverse transformation.

Convert EPSG:10635 to EPSG:10638 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:10635", "EPSG:10638", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:10635 — Saba

geographic system using latitude, longitude and ellipsoidal height · Area of use: BES Islands - Saba onshore

+proj=longlat +ellps=intl +towgs84=1138.7432,-2064.4761,110.7016,214.615206,-479.360036,164.703951,-402.32073 +no_defs +type=crs

More about EPSG:10635 →

Target: EPSG:10638 — BES2020 Saba

geographic system using latitude, longitude and ellipsoidal height · Area of use: BES Islands - Saba onshore

+proj=longlat +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +no_defs +type=crs

More about EPSG:10638 →

Frequently asked questions

How accurate is converting Saba to BES2020 Saba?: The most accurate official EPSG transformation between these systems is accurate to about ±0.05 m within its stated area of use. Browser-based converters approximate datum shifts with Helmert parameters; for surveying-grade work apply the official transformation in a desktop GIS.
Does my data leave the browser when I use this converter?: No. All coordinate transformations are computed locally in your browser using proj4js. The coordinates you enter are never transmitted to any server.

Need the reverse? Convert EPSG:10638 to EPSG:10635 →